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[linux隞也 雿輻 gdiskparted(舀孱PT)隞支脩′蝣,fdisk 芣舀尋BR銝舀孱PT

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頝唾唳摰璅撅
璅銝
潸” 2016-1-2 20:13:26 | 芰閰脖 撣 |摨閬 |梯璅∪
砍敺 IT_man 2017-3-21 22:08 蝺刻摩 1 g" H4 p0 S2 V+ y9 O
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: http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid# N' ~; b1 R! D3 C" {! ^4 V" b7 D% h
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
3 w8 e* E6 q- f, L: Aformat 憭扳 16TB 蝖祉(>16TB銝摰閬冽迨隞) : http://www.unix-ninja.com/p/Formatting_Ext4_volumes_beyond_the_16TB_limit/http://blog.yourdream.cc/2014/11/19/morethan16t.html
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( k: _2 w, b, T- x啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
( o; b+ w4 r8 P( }5 W: d/dev/sdb1               /home2                  ext4    defaults        1 10 ~# |% v) s! c) A

+ u& t4 P, b% j+ b  S5 k" }# Cparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/. c2 V8 Z! ?  Z
   
9 o. ^5 G2 j1 G" \$ ffdisk 隞文芣舀 MBR 銝舀 GPT ,閬 GPT蝖祉雿輻 parted 游隞文脩′蝣,隞乩撠隞蝝 parted冽
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parted 臭誑湔亙其銵隞文撠勗莎臭撣詨末函隞歹摰撣貊函隤瘜憒銝嚗
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parted [鋆蝵孫 [隞 [窟]- K- p9 \' R1 b( ?+ c* h! k5 j$ C
賊賂: w4 W7 Z% v3 S: f5 G, `9 c# A
隞文踝
- L, X& h, P. G5 r2 q9 j& n          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯+ {* K, U6 V" @( h5 V0 c$ Z! d
          憿舐內莎print
8 t" |, g5 B* y) q% l- \- o$ x0 i          芷文莎rm [partition]
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8 v1 ~$ V3 x- B( G4 b3 H寞銝:
6 t2 Z0 D) h0 ^8 _6 J+ L# M(parted) mkpart primary 0 100% (primary皰artition name)
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! B  e% Q, W3 N/ R4 T+ S4 R: e. E寞鈭:
8 ?; D$ C- @( K$ `0 F. k) xPartition name?  []? 30T_part
4 r. V% a/ A$ L+ J/ WFile system type?  [ext2]? ext2  (ext4銝霅血)
2 Y8 U5 R/ f+ b& Q* l4 n% YStart? 0B or 0%
: B8 d3 k: s; QEnd? 30TB or 100%
- V2 c% N/ R  p  D6 |Warning: You requested a partition from 0.00B to 30.0TB.( x) b! H4 ~+ u$ [% u0 K/ T
The closest location we can manage is 17.4kB to 30.0TB.
; b& c4 [+ I- c& m" D+ ]Is this still acceptable to you?: |; _: k3 E. |( d+ q8 E' d
Yes/No? Yes1 _5 Z2 N* }2 v5 J4 U8 ]" B) }- I9 N
Warning: The resulting partition is not properly aligned for best performance.1 Y0 ~1 O, t! D
Ignore/Cancel?
& f+ y$ L* L( S" h" z& ?雿輻牠xt2撠曹銝餈啗郎: r8 h) V8 b: S" E# R$ i9 @1 C- |: F
mkfs -t ext4 /dev/sdb1 ===> format" I7 g* Q. A3 q' @- G  {. w6 T) U. d
ERROR:. H% {! G% {$ F8 I8 [3 b; e$ F% ?6 C
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits! A, g0 g/ q  m7 l* {
        using a blocksize of 4096
$ [+ V* g0 a9 M8 w8 e  j5 p& wSOL:
0 U' C* Y: I8 n$ P2 Tformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit1 K# {: b0 T0 |0 @! i$ |0 A6 W
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3& \- _* n/ ?8 x
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
8 K4 C; n5 B; k' K6 E( X, dcd /usr/local/src/e2fsprogs-1.42.73 c5 ?1 m, {7 q5 w
mkdir build
9 Q- s8 o& A4 R5 M( l' g, s! O* H# ecd build
5 U9 |( E/ s6 M# q ../configure$ Q( {1 N" G/ R; e$ D
make7 i1 k, Z0 A4 X- M
make install/ a6 C# T! {+ m  u
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
# z9 o  s7 N# E& m+ ?憿舐內銝:  s4 ~, s) m3 l
This filesystem will be automatically checked every 27 mounts or
9 @8 E8 r! R/ P% T% {180 days, whichever comes first.  Use tune2fs -c or -i to override.: _3 i& H  K& A9 e, ]8 z- s! c  \
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
" D3 Q; n* x+ I& h/ ?- b4 f4 t& |/dev/sdb1     /home2     ext4    defaults     1 0(蝚砌詨1:瘥亙隞,蝚砌詨0:蝟餌絞銝甇撣豢fsck銝瑼X)" U  E: }) \" w( U* E6 m
mount /home2' c, j1 Q# T& ]

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=======================================================================
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% @2 x  U5 F8 d[蝖祉皜祈岫]1.& e2 X3 H( V- O! v* ^
Linux蝖祉撖怠仿摨行葫閰衣隞:+ Z# T6 N2 z7 S6 l: y$ ?3 a
#time dd if=/dev/zero of=/home2/test bs=2k count=1000000   //     /home2 痂ount raid0 33TB 蝖祉, 11*3TB銋SCSI蝖祉3 B$ f; q$ G  |- z" ~, {9 x7 Y
1000000+0 records in
! x+ C% f  i& r: O- r8 M/ Q1000000+0 records out( z, M" W  z( k# m
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
  x" X7 C/ p* z2 e6 q/ Z
$ V  }9 L* c$ U$ ]3 I3 Oreal    0m3.590s" T- v; u2 c) |( i
user    0m0.130s
) V( f5 j7 T' Y! esys     0m3.455s; P; d/ E; A3 m3 J/ ^" `# c

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# i8 t' o( ]5 K& yLinux蝖祉霈摨行葫閰衣隞:9 d, `3 [" }' F* X3 b
#time dd if=/home2/test of=/dev/null bs=2k0 e# C; G  v) u6 J8 H0 R
1000000+0 records in' g' j, |9 a# V  A
1000000+0 records out. |( E$ c+ U$ N0 X
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s' b. @3 ^9 O7 K, h: A
# H' ^7 _% M( n( w; l2 r. J$ d
real    0m0.954s
" f0 E2 a* N1 n6 `8 uuser    0m0.083s
1 e" T0 E% {8 Z" q' B2 _sys     0m0.868s) U  H5 G2 z8 `# k
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閫嚗. ?% ^6 ]* O+ Z4 ]( {
time 其閮
+ e) s7 b6 Y5 r# C& Vdd 其銴鋆踝敺if OF5 s/ C/ c* O% A+ m  b
if=/dev/zero銝YIO嚗隞亙臭誑其皜祈岫蝝蝎孵神摨;璅 of=/dev/null 銝YIO嚗臭誑其皜祈岫蝝蝎寡摨: N9 X) `% |) F! u4 F4 W
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
, u( ~. w/ n3 g& N  c9 {# g鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
8 M0 t/ X# z5 J  x, T" q豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
" m  F8 v  s$ z+ o望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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- {# g) R- X) U0 e- r皜祈岫摰閮敺芷 /home2/test2 E$ l  W7 m, ~' k. c' i  L  p
2.
5 O8 c( _: x( w" B- l2 X虫蝔格寞:
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皜祈岫蝖祉霈摨:
0 m7 H+ U8 g" B8 s2 L: c2 uhdparm -t /dev/sdb; w; w4 Z+ [, C" `( ]7 p
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/dev/sdb: (雿輻禿aid0摨血翰)
. e" c4 w2 Y. A" H& g1 P7 E9 Y Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
  a  L9 [- o' d& }) n8 m; \! I' r1 D1 C4 g7 c; s+ ]- j
/dev/sdb: (敺靘寞LVM摨行)
, \' C3 A, M+ o8 z/dev/sdb:
+ Z$ y* `/ x, o5 C$ v1 W* T2 T' CTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec6 _$ w! y  x6 B
皜祈岫蝖祉撖怠仿摨:6 N8 C  y) d) f1 e9 f+ Q6 }/ s
hdparm -t --direct /dev/sdb0 N: s" l8 H  i
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/dev/sdb: (雿輻禿aid0摨血翰)
0 q5 E: [% j3 O# E$ L5 \8 a Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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/dev/sdb: (敺靘寞LVM摨行)# V3 s& V( s0 t* I- U( P1 l" v
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec* w) l- m3 q+ Y( T6 U! B

# `4 U, L4 M* [$ V8 F' A) M6 m8 i1 N3 E7 Q' y' A0 v* }
血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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6 }* ]* i3 {7 p7 V2 A# |

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